Researchers who taught a gorilla named Koko to use sign language found that by age 5, she had a vocabulary of about ________ words.
A) 100
B) 500
C) 1,000
D) 5,000

Name: Researchers who taught a gorilla named Koko to use sign language found that by age 5, she had a vocabulary of about ________ words. A) 100 B) 500 C) 1,000 D) 5,000
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The researchers who taught Koko to use sign language found that by age 5, she had a vocabulary of about 500 words.

Researchers Who Taught a Gorilla Named Koko to Use Sign